From: Dave Gerlach Date: Wed, 17 Jun 2015 19:52:09 +0000 (-0500) Subject: Documentation: dt: Update ti,emif bindings X-Git-Tag: v4.19~1677^2~17^2~4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=12bb14aa480db6438b1b95a1fcddfb3810b11134;p=platform%2Fkernel%2Flinux-rpi.git Documentation: dt: Update ti,emif bindings Update the Texas Instruments EMIF binding document to include the device tree bindings for ti,emif-am3352 and ti,emif-am4372 which are used by the ti-emif-sram driver to provide low-level PM functionality. Acked-by: Rob Herring Acked-by: Tony Lindgren Signed-off-by: Dave Gerlach Signed-off-by: Santosh Shilimkar --- diff --git a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt index fd823d6..29a9987 100644 --- a/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt +++ b/Documentation/devicetree/bindings/memory-controllers/ti/emif.txt @@ -23,6 +23,13 @@ Required properties: the value shall be "emif" where is the number of the EMIF instance with base 1. +Required only for "ti,emif-am3352" and "ti,emif-am4372": +- sram : Phandles for generic sram driver nodes, + first should be type 'protect-exec' for the driver to use to copy + and run PM functions, second should be regular pool to be used for + data region for code. See Documentation/devicetree/bindings/sram/sram.txt + for more details. + Optional properties: - cs1-used : Have this property if CS1 of this EMIF instance has a memory part attached to it. If there is a memory @@ -44,7 +51,7 @@ Optional properties: - hw-caps-temp-alert : Have this property if the controller has capability for generating SDRAM temperature alerts -Example: +-Examples: emif1: emif@0x4c000000 { compatible = "ti,emif-4d"; @@ -56,3 +63,11 @@ emif1: emif@0x4c000000 { hw-caps-ll-interface; hw-caps-temp-alert; }; + +/* From am33xx.dtsi */ +emif: emif@4c000000 { + compatible = "ti,emif-am3352"; + reg = <0x4C000000 0x1000>; + sram = <&pm_sram_code + &pm_sram_data>; +};